Report of the Botanist. 103 



Yalsa thelebola Fi\ 



Dead branches of alders. West Albari3\ Jane. 



Yalsa Platani Schw. 



Fallen branches of Platanus occidentalls. Buthlehem. Ma3^ 



Yalsa Yitis Schw, 



Dead branches of grape-vines. Greenbush. November. 



Yalsa Colliculus Worrnsh. 



Dead branches of pine trees. Center. April. 



Yalsa quateenata Fr. 



Dead branches of beech trees. Greenbnsh. August. 



Yalsa tkuncata C. (& P. 



Spermogonia — Cytisporoid, disk eninipeiit, truncate, pulveru- 

 lent in the center, sometimes having a bilabiate appearance; sper- 

 matia amber in the mass, minute, linear. 



Ascophore — Erumpent, prominent, truncate; perithecia six to 

 eight, nestling in the inner bark, globose, black, the necks united 

 in an elliptical or orbicular black disk which is pierced by the 

 ostiola and generally pulverulent on the margin ; asci small, lanceo- 

 late ; spores minute, sausage-shaped, hyaline, .00035'-.000i' long. 



Dead branches of alders. Johnsburgli, AYarren county. 

 October. 



The truncate brownish-powdered disk is a characteristic feature 

 in this species. The dust of the disk seems to disapj)car after a 

 time. 



Yalsa Alni n. sj). 



Perithecia nestling in the inner bark, black ; ostiola short, black, 

 obtuse, dotting the small blackish mostly transversely erumpent 

 disk ; spores crowded or biseriate, sausage-shaped, hyaline, 

 .0004'-.0005' long. 



Trunks and branches of dead alders. Center. April. 

 This plant is plentiful where it occurs, rendering the branch 

 rough for several feet in extent. 



Yalsa peofusa Fr. 



Dead branches of locust trees, Bohinia i)seudacacia . Albany. 

 June. 



This, according to specimens received from Dr. Curtis, is Mas- 

 saria macros_pora B. & C. In both this and the next species the 

 bark is stained black b}^ the spores oozing out as in Massaria. 



